I purchased Pride of Nations on Steam 3-4 years ago and I am now trying to re-install it (along with the 4xDLC) on a new hard drive. The install process seems to work perfectly OK and I have an icon on my desktop and I can access the manual. But when I try to launch the game it tells me the game is "Running" for a few seconds and then it stops.

I looked on the Steam forum for help and it indicated it might be Firewall problem with Norton Internet Security that I have installed (although I do also have Revolution Under Siege from Steam and that launches OK each time). So I checked the Firewall Program Control and all the Steam applications (Bootstrapper, Service, Webhelper, Error Reporter) are "allowed". So is Revolution Under Siege (as are the other games that I have) but Pride of Nations does not appear on that list at all. The Steam website then refers people to the game publishers website for more help.